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Expired European patentEurope

Developing unit with means for preventing developing powder jam around an exhaust outlet

EP 0544993 B1 · Applicant: SHARP KABUSHIKI KAISHA

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed July 27, 1992 and granted December 20, 1995. A European patent lasts at most 20 years from filing, so its term ended July 27, 2012.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by January 27, 2018.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledJuly 27, 1992
PublishedJune 9, 1993
GrantedDecember 20, 1995
Term endedJuly 27, 2012
Application numberEP 92112817
Classification (CPC)G03G15/0844

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedJuly 27, 1992PublishedJune 9, 1993Patent grantedDec 20, 1995Term endedJuly 27, 2012

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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